Solid fuel heating unit



FIG. 1 is a front elevational view of a solid fuel heating unit showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof of a second embodiment thereof, wherein the only difference resides in the glass front doors;

FIG. 7 is a front elevational view of a third embodiment thereof, wherein the only difference resides in the use of a mesh firescreen instead of doors;

FIG. 8 is a front elevational view of a fourth embodiment; wherein the only difference resides in the solid doors, the handles and the upper vent; and

FIG. 9 is a front elevational view of an alternate embodiment of the fourth embodiment having doors with glass panels. 

The ornamental design for a solid fuel heating unit, substantially as shown and described. 